Home HOME Kovove Materialy-Metallic Materials 2014 Metallic Materials Vol. 52 (2014), no. 1, pp.35-45

Journal info

Select Journal







Webshop Cart

Your Cart is currently empty.
Info: Your browser does not accept cookies. To put products into your cart and purchase them you need to enable cookies.

Metallic Materials Vol. 52 (2014), no. 1, pp.35-45

Title: Adsorption and corrosion inhibitive properties of 2-Mercaptobenzothiazole on AISI steel 4130 alloy in hydrochloric acid solution
Author: A. R. HOSEIZADEH, I. DANAEE, M. H. MADDAHY
Abstract: The inhibition ability of 2-Mercaptobenzothiazole (MBT) against the corrosion of AISI steel 4130 in 1 M HCl solution was evaluated by polarization, electrochemical impedance spectroscopy (EIS) and chronoamperometry. Polarization studies indicated that MBT retarded both the cathodic and anodic reactions through chemical adsorption and blocking the active corrosion sites. The adsorption of this compound obeyed the Langmuir adsorption isotherm. The inhibition efficiency was increased with inhibitor concentration as well as temperature. EIS data was analyzed for an equivalent circuit model and showed that as the inhibitor concentration increased the charge transfer resistance of steel increased whilst double layer capacitance decreased. Kinetic and thermodynamic parameters such as activation energy, enthalpy, entropy and free energy of activation and adsorption were calculated. Atomic force microscopy (AFM) and optical microscope were used to study the steel surface with and without inhibitor.
Keywords: steel 4130, corrosion, inhibitor, adsorption isotherm, Langmuir
Year: 2014, Volume: 52, Issue: 1 Page From: 35, Page To: 45
doi:10.4149/km_2014_1_35
Price: Call for Pricing





© AEPress s.r.o
Copyright notice: For any permission to reproduce, archive or otherwise use the documents in the ELiS, please contact AEP.